US3316903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhalator
Assignee: Individual
•
Filing: 1963-09-26
•
Granted: 1967-05-02
•
Expires: 1983-09-26
Abstract
No abstract record available.
Inventors
- 👤 Albert M Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:54
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0057; A61M16/0075; A61M16/0084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
IN A RESPIRATORY DEVICE OF THE TYPE INCLUDING A BELLOWS AND END MEMBERS ON THE ENDS OF SAID BELLOWS BY MEANS OF WHICH SAID BELLOWS MAY BE EXPANDED OR CONTRACTED, ONE OF SAID END MEMBERS INCLUDING AN INLET PASSAGE, AN OUTLET PASSAGE, AND A MASK PASSAGE, A FACE MASK HAVING ITS INTERIOR IN COMMUNICATION WITH SAID MASK PASSAGE, A BELLOWS PASSAGE IN OPPOSED RELATION TO SAID OUTLET PASSAGE AND A VALVE FOR CONTROLLING THE FLOW OF FLUID THROUGH SAID PASSAGES, SAID VALVE COMPRISING AN ELONGATED STRIP OF FLEXIBLE MATERIAL SECURED TO SAID ONE END MEMBER INTERMEDIATE ITS ENDS, ONE END OF SAID STRIP EXTENDING OVER SAID INLET PASSAGE ANDOPERABLE TO OPEN SAID INLET PASSAGE WHEN SAID BELLOWS EXPANDS AND CLOSE SAID INLET PASSAGE AS SAID BELLOWS CONTRACT, THE OTHER END OF SAID STRIP BEING MOVABLE FROM ONE POSITION CLOSING SAID OUTLET PASSAGE WHEN SAID BELLOWS CONTRACT TO A POSITION CLOSING SAID BELLOWS PASSAGE WHEN SAID BELLOWS EXPAND, SAID MASK PASSAGE BEING IN COMMUNICATION WITH SAID OUTLET PASSAGE WHEN SAID STRIP IS IN THE LAST NAMED POSITION.
Claim 2
Dependent Claim
176 words
IN A RESPIRATORY DEVICE OF THE TYPE INCLUDING A BELLOWS AND END MEMBERS ON THE ENDS OF SAID BELLOWS BY MEANS OF WHICH SAID BELLOWS MAY BE EXPANDED OR CONTRACTED, ONE OF SAID END MEMBERS INCLUDING AN INLET PASSAGE, AN OUTLET PASSAGE, AND A MASK PASSAGE, A FACE MASK HAVING ITS INTERIOR IN COMMUNICATION WITH SAID MASK PASSAGE, A BELLOWS PASSAGE IN OPPOSED RELATION TO SAID OUTLET PASSAGE AND A VALVE FOR CONTROLLING THE FLOW OF FLUID THROUGH SAID PASSAGES, SAID VALVE COMPRISING AN ELONGATED STRIP OF FLEXIBLE MATERIAL SECURED TO SAID ONE END MEMBER INTERMEDIATE ITS ENDS, ONE END OF SAID STRIP EXTENDING OVER SAID INLET PASSAGE ANDOPERABLE TO OPEN SAID INLET PASSAGE WHEN SAID BELLOWS EXPANDS AND CLOSE SAID INLET PASSAGE AS SAID BELLOWS CONTRACT, THE OTHER END OF SAID STRIP BEING MOVABLE FROM ONE POSITION CLOSING SAID OUTLET PASSAGE WHEN SAID BELLOWS CONTRACT TO A POSITION CLOSING SAID BELLOWS PASSAGE WHEN SAID BELLOWS EXPAND, SAID MASK PASSAGE BEING IN COMMUNICATION WITH SAID OUTLET PASSAGE WHEN SAID STRIP IS IN THE LAST NAMED POSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |